TY  - JOUR
AU  - Krey, C.
AU  - Legl, S.
AU  - Dunsiger, S. R.
AU  - Meven, M.
AU  - Gardner, J. S.
AU  - Roper, J. M.
AU  - Pfleiderer, C.
TI  - First Order Metamagnetic Transition in Ho$_{2 }$Ti$_{2 }$O$_{7}$ Observed by Vibrating Coil Magnetometry at Milli-Kelvin Temperatures
JO  - Physical review letters
VL  - 108
IS  - 25
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2015-03008
SP  - 257204
PY  - 2012
AB  - We report vibrating coil magnetometry of the spin-ice system Ho2Ti2O7 down to 0:04 K for magnetic fields up to 5 T applied parallel to the [111] axis. History-dependent behavior emerges below T0 0:6 K near zero magnetic field, in common with other spin-ice compounds. In large magnetic fields, we observe a magnetization plateau followed by a hysteretic metamagnetic transition. The temperature dependence of the coercive fields as well as the susceptibility calculated from the magnetization identify the metamagnetic transition as a line of first order transitions terminating in a critical end point at Tm' 0:37 K, Bm’ 1:5 T. The metamagnetic transition in Ho2Ti2O7 is strongly reminiscent of that observed in Dy2Ti2O7, suggestive of a general feature of the spin ices.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000305568700031
DO  - DOI:10.1103/PhysRevLett.108.257204
UR  - https://juser.fz-juelich.de/record/190049
ER  -